mdatestr, mdatenum: A simple alternative of datestr and datenum

the original datestr and datenum are powerful, but slow. The two functions' are limited, but faster.

Description

The original datestr and datenum are powerful, but slow.

mdatestr, mdatenum only convert date between string with format 'yyyy-mm-dd' and series value (with Excel type).

They cost 20% time of datestr and datenum(with specific format).

% usage
% mdatenum('2010-10-30') % ans = 734421
% mdatestr(73421) % ans = '2010-10-30'

Acknowledgements

The author wishes to acknowledge the following in the creation of this submission:
DateConvert

• MATLAB release: MATLAB 7.11 (2010b)

[Brian Emery]

Nice submission, easy to use, and easy to modify to do what I needed to do.